Finishes CO2 funciton improvements

Using one year of thermal samples
Before:
```
Run 0: 10.8067369461
Run 1: 10.8834178448
Run 2: 10.8783671856
Run 3: 10.8245301247
Run 4: 10.7525990009
Run 5: 10.7528140545
Run 6: 10.7598810196
Run 7: 10.7674629688
Run 8: 10.7472248077
Run 9: 10.8659398556
Mean:  10.8038973808
```

After: 
```
Run 0: 1.67898583412
Run 1: 1.64819908142
Run 2: 1.64295697212
Run 3: 1.64265298843
Run 4: 1.65540194511
Run 5: 1.66723799706
Run 6: 1.68602085114
Run 7: 1.74159407616
Run 8: 1.81774091721
Run 9: 2.15543603897
Mean:  1.73362267017
```